<template>
	<div>
		<!-- 面包屑导航 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>权限管理</el-breadcrumb-item>
			<el-breadcrumb-item>角色列表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片 -->
		<el-card>
			<el-button type="primary">添加角色</el-button>
			<el-table :data="roleList" border stripe>
				<!-- 展开列 -->
				<el-table-column type="expand">
					<template slot-scope="scope" class="pd">
						<el-row :class="['bdbottom',i1===0?'bdtop':'','vcenter']" v-for="(item1 ,i1) in scope.row.children" :key="item1.id">
							<!-- 一级权限 -->
							<el-col :span="5">
								<el-tag closable="" type="primary"@close="closeRightById(scope.row,item1.id)">{{item1.authName}}</el-tag>
								<i class="el-icon-caret-right"></i>
							</el-col>
							<!-- 二级 三级权限 -->
							<el-col :span="19">
								<el-row v-for="(item2,i2) in item1.children" :key="item2.id" :class="[i2===0?'':'bdtop','vcenter']">
									<el-col :span="6">
										<el-tag type="success" closable="" @close="closeRightById(scope.row,item2.id)">{{item2.authName}}</el-tag>
										<i class="el-icon-caret-right"></i>
									</el-col>
									<el-col :span="18">
										<el-tag type="warning" closable="" v-for="(item3,i3) in item2.children" :key="item3.id" @close="closeRightById(scope.row,item3.id)">{{item3.authName}}</el-tag>
									</el-col>
								</el-row>
							</el-col>
						</el-row>
					</template>
				</el-table-column>
				<el-table-column type="index"></el-table-column>
				<el-table-column label="角色名称" prop="roleName"></el-table-column>
				<el-table-column label="角色描述" prop="roleDesc"></el-table-column>
				<el-table-column label="操作" width="300px">
					<template slot-scope="scope">
						<el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
						<el-button type="danger" icon="el-icon-delete" size="mini">删除</el-button>
						<el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRightDialog(scope.row)">分配权限</el-button>
					</template>
				</el-table-column>
			</el-table>
		</el-card>
		
		<!-- 分配权限对话框 -->
		<el-dialog
		  title="分配权限"
		  :visible.sync="setRightDialogVisible"
		  width="50%" @close="setRightDialogClosed">
		  <el-tree ref="treeRef" show-checkbox default-expand-all node-key="id" :default-checked-keys="defKeys" :data="rightsList" :props="treeProps"></el-tree>
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="setRightDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="allotRights">确 定</el-button>
		  </span>
		</el-dialog>
	</div>
</template>

<script>
	export default{
		data(){
			return{
				roleList:[],
				setRightDialogVisible:false,
				rightsList:[],
				treeProps:{
					label:'authName',
					children:'children'
				},
				defKeys:[],
				roleId:''
			}
		},
		created(){
			this.getRolesList()
		},
		methods:{
			async getRolesList(){
				const {data:res}=await this.$http.get('roles')
				if(res.meta.status!==200){
					this.$message.error("获取数据失败")
				}else{
					this.roleList=res.data
				}
			},
			async closeRightById(role,rightId){
			
				const confirmResult =await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
					confirmButtonText: '确定',
					cancelButtonText: '取消',
					type:'warning'
				}).catch(err=>err)
				if(confirmResult!=='confirm'){
					this.$message.info("取消删除")
				}else{
					const {data:res}=await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
					if(res.meta.status!=200){
						this.$message.error("删除失败")
					}else{
						role.children=res.data
					}
				}
			},
			async showSetRightDialog(role){
				this.roleId=role.id
				const {data:res}=await this.$http.get('rights/tree')
				if(res.meta.status!==200){
					this.$message.error("获取数据失败")
				}else{
					this.rightsList=res.data
					this.getLeafKeys(role,this.defKeys)
				}
				this.setRightDialogVisible=true
			},
			getLeafKeys(node,arr){
				if(!node.children){
					arr.push(node.id)
				}else{
					node.children.forEach(item=>{
						this.getLeafKeys(item,arr)
					})
				}
			},
			setRightDialogClosed(){
				this.defKeys=[]
			},
			async allotRights(){
				const keys=[
					...this.$refs.treeRef.getCheckedKeys(),
					...this.$refs.treeRef.getHalfCheckedKeys()
				]
				const idStr=keys.join(",")
				const {data:res} =await this.$http.post(`roles/${this.roleId}/rights`,{rids:idStr})
				if(res.meta.status!==200){
					this.$message.error("权限分配失败")
				}else{
					this.getRolesList()
					this.setRightDialogVisible=false
				}
			}
		}
	}
</script>

<style>
	
	.el-button{
		font-size: 12px;
	}
	.el-tag{
		margin: 7px;
	}
	.bdtop{
		border-top: 1px solid #eee;
		
	}
	.bdbottom{
		border-bottom: 1px solid #eee;
	}
	.vcenter{
		display: flex;
		align-items: center;
	}
</style>
